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Boron Nitride Nanotubes-Reinforced Glass Composites

Author
Bansal, Narottam
Published
August 2005.
Physical Description
1 electronic document
Additional Creators
Hurst, Janet B. and Choi, Sung R.
Online Version

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Summary
Boron nitride nanotubes of significant lengths were synthesized by reaction of boron with nitrogen. Barium calcium aluminosilicate glass composites reinforced with ~4 weight percent of BN nanotubes were fabricated by hot pressing. Ambient-temperature flexure strength and fracture toughness of the glass-BN nanotube composites were determined. The strength and fracture toughness of the composite were higher by as much as 90 and 35 percent, respectively, than those of the unreinforced glass. Microscopic examination of the composite fracture surfaces showed pullout of the BN nanotubes. The preliminary results on the processing and improvement in mechanical properties of BN nanotube reinforced glass matrix composites are being reported here for the first time.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20050207381.
E-15245.
NASA/TM-2005-213874.
30th International Conference and Exposition on Advanced Ceramics and Composites; 22-27 Jan. 2006; Cocoa Beach, FL; United States.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15962959